Description

Monohydride Terminated Polydimethylsiloxane, Asymmetric, 100 Cst is a specialized reactive silicone fluid featuring a unique asymmetric structure with a monohydride functional group at one terminus. This molecular architecture is critical for controlled cross-linking and chain extension in silicone polymer synthesis, offering precise reactivity and compatibility. It is an essential intermediate for manufacturers in the silicone elastomer, adhesive, sealant, and specialty coating industries seeking to tailor material properties such as flexibility, hydrophobicity, and thermal stability.

Application

• Cross-linking Agent in the production of addition-cure (hydrosilylation) silicone elastomers and gels.
• Chain Extender/Modifier for customizing the molecular weight and properties of silicone polymers and copolymers.
• Reactive Intermediate in the synthesis of functionalized silicones for release coatings and pressure-sensitive adhesives.
• Surface Modification agent for imparting hydrophobic characteristics to inorganic fillers and substrates.
• Key Component in formulations for high-performance silicone encapsulants and potting compounds.
• Lubricant Base Fluid for specialized high-temperature or release applications where reactive functionality is required.

Basic Information

Product Name	Monohydride Terminated Polydimethylsiloxane, Asymmetric, 100 Cst
CAS No.	1038821-58-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Asymmetric Monohydride Terminated PDMS; Hydride Functional Polydimethylsiloxane; Mono-Hydride Terminated Silicone Oil; Si-H Terminated Siloxane; Reactive Silicone Fluid; Polymethylhydrosiloxane (partial); Hydrosiloxane; CAS 1038821-58-7
EINECS	Contact for details

Quality Control

Our Monohydride Terminated Polydimethylsiloxane is manufactured under stringent process controls to ensure batch-to-batch consistency and reliable reactivity. Quality is verified through a series of analytical tests including viscosity, hydride content (Si-H assay), and spectroscopic identification. A Certificate of Analysis (COA) detailing specific results for each parameter is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and moisture absorption. Recommended storage temperature is 15-25°C. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Viscosity @ 25°C	~100 cSt
Specific Gravity @ 25°C	~0.97
Refractive Index @ 25°C	~1.403
Hydride Content (Si-H)	Contact for details
Volatile Content	≤ 1.0%
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.